Well, the dress has been found ... to be a fake!
The thief who took the gown says he took the dress from Lupita's room at The London after finding the door ajar.
[Image via WENN.]
The actress HIGHlighted her fiery red locks with a cherry red Prada gown with jeweled neckline and bow at the back.
Because she didn't need a necklace, Jessica opted for a gorgeous Harry Winston diamond, and ruby bracelet, and teardrop ruby earrings.
Compared to some of her past looks, we aren't blown away, but we have a feeling she'll more than make up for it on Sunday.
What do U think???
[Image via Getty Images.]